E.g. the coal miners who voted for Trump because he promised them their jobs back. At least I think, it will difficult to return coal to its former "glory" with

E.g. the coal miners who voted for Trump because he promised them their jobs back. At least I think, it will difficult to return coal to its former "glory" with the current energy landscape (e.g. cheap and plenty oil as well as cheaper alternatives), so I am doubtful that will happen. It can at least partially happen. The Democrats have waged absolute total war on the coal industry, something Hillary explicitly confirmed during the campaign, and you don't have to dial that back much to have some good effects, the biggest issue will be the power plants that have converted to natural gas and can't easily go back (and, boy, was that a bad national decision, making us much more fragile, even if coal is truly nasty stuff).